When do activity's instance variables get initialized?

Question

In my android application I have a strange bug. An instance variable like below gets assigned to it\'s default value unexpectedly at run time (in this case - false). When do thi

Answer 1

Instance variables in Java are initialized when the instance is created.

Most of the time objects would get instantiated with new.

In case of activities, they are instantiated by the Android framework using reflection (see Instrumentation#newActivity()). Then initialization for Context is performed and activity onCreate() gets called on the instance.

For details, have a look at ActivityThread source.

Answer 2

Java doesn't have "global variables".

You are talking about instance variables. They are initialized each time a new instance is created.